Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 2,705	$ 1,138
Investment securities	8,088	8,090
Receivables, less allowance for doubtful accounts of $135 in 2014 and $118 in 2013:	1,004	950
Other current assets	3,839	2,122
Total current assets	15,636	12,300
Property and equipment, net	1,349	1,218
Long-term investment securities	1,947	1,710
Goodwill	3,695	3,733
Other long-term assets	1,704	1,774
Total assets	24,331	20,735
Current liabilities:
Benefits payable	4,676	3,893
Trade accounts payable and accrued expenses	2,068	1,821
Current portion of long-term debt	512	0
Book overdraft	267	403
Unearned revenues	246	206
Total current liabilities	7,769	6,323
Long-term debt	3,826	2,600
Future policy benefits payable	2,299	2,207
Other long-term liabilities	312	289
Total liabilities	14,206	11,419
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $1 par; 10,000,000 shares authorized; none issued	0	0
Common stock, $0.16 2/3 par; 300,000,000 shares authorized; 197,843,933 shares issued at September 30, 2014 and 196,275,506 shares issued at December 31, 2013	33	33
Capital in excess of par value	2,400	2,267
Retained earnings	9,813	8,942
Accumulated other comprehensive income	233	158
Treasury stock, at cost, 44,508,980 shares at September 30, 2014 and 42,245,097 shares at December 31, 2013	(2,354)	(2,084)
Total stockholders’ equity	10,125	9,316
Total liabilities and stockholders’ equity	$ 24,331	$ 20,735